CosmWasm is a smart contract platform designed to provide WebAssembly virtual machine capabilities to the Cosmos Ecosystem. It exists as a module for the Cosmos SDK, enabling any project building with the SDK to benefit from smart contract functionalities, primarily using the Rust programming language. This platform serves a similar purpose to Solidity contracts, which are commonly used for the Ethereum blockchain. Confio developed CosmWasm in June 2019 to support the growing need for smart contract capabilities in the Cosmos Ecosystem. With this platform, developers can easily build and deploy smart contracts using the Cosmos SDK and the Rust programming language, providing a more versatile and efficient way to develop decentralized applications. In summary, CosmWasm is a smart contract platform that allows developers to leverage WebAssembly virtual machines for the Cosmos Ecosystem. It serves as a module for the Cosmos SDK, providing smart contract capabilities using the Rust programming language. Developed by Confio in 2019, CosmWasm enables a more efficient and versatile way to develop decentralized applications in the Cosmos Ecosystem.